Analysis

What Is Agent2Agent (A2A)? Definition & Examples

Page published

Publication date unknown · First observed: 5 Nov 2026

Coverage timeline

5 Nov 2026nhimg.orgobserved

Single-source analysis — one report is available.

Why it matters

A2A deployments require authenticated peers and constrained delegation so that a compromised agent cannot turn collaboration into unintended authority across agent boundaries.

NHI Mgmt Group’s Agent2Agent (A2A) glossary entry explains inter-agent communication and the security boundaries around identity, permissions, and delegation. The reference outlines signed agent descriptors, task-scoped authorization, explicit delegation rules, and callback controls without reporting a specific vulnerability or demonstrated attack.